package lmh.example.exam3_2;


import android.os.Handler;
import android.os.Looper;
import android.os.Message;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.Socket;
import java.net.SocketTimeoutException;

public class ClientThread implements Runnable
{
    // 定义向UI线程发送消息的Handler对象
    private Handler handler;
    // 该线程所处理的Socket所对应的输入流
    private BufferedReader br;
    private OutputStream os;
    // 定义接收UI线程的消息的Handler对象
    Handler revHandler;
    ClientThread(Handler handler)
    {
        this.handler = handler;
    }

    @Override
    public void run()
    {
        try {
            Socket s = new Socket("192.168.116.2", 5569);
            br = new BufferedReader(new InputStreamReader(s.getInputStream()));
            os = s.getOutputStream();
            // 启动一条子线程来读取服务器响应的数据
            new Thread(() ->
            {
                String content;
                // 不断读取Socket输入流中的内容
                try
                {
                    while ((content = br.readLine()) != null) {
                        // 每当读到来自服务器的数据之后，发送消息通知
                        // 程序界面显示该数据
                        Message msg = new Message();
                        msg.what = 0x123;
                        msg.obj = content;
                        handler.sendMessage(msg);
                    }
                }
                catch (IOException e)
                {
                    e.printStackTrace();
                }
            }).start();
            // 为当前线程初始化Looper
            Looper.prepare();
            // 创建revHandler对象
            revHandler = new Handler()
            {
                @Override
                public void handleMessage(Message msg)
                {
                    // 接收到UI线程中用户输入的数据
                    if (msg.what == 0x345) {
                        // 将用户在文本框内输入的内容发向服务器
                        try {
                            os.write((msg.obj.toString() + "\r\n")
                                    .getBytes("utf-8"));
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            };
            // 启动Looper
            Looper.loop();
        }
        catch (SocketTimeoutException e1)
        {
            System.out.println("网络连接超时！！");
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}
